51¶¯Âþ 2012 holiday quiz Anatomical incongruities, why men are like fruit flies, a boson by any other name, and much more in our end-of-year quiz Features
LifePrehistoric cinema: A silver screen on the cave wall With cartoon frescoes, shadow theatre and a rudimentary form of animation, our ancestors knew how to bring their stories to life, says Catherine BrahicFeatures